{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{llcccc}
\hline\hline
\multirow{2}{*}{Asset type} & Estimate & Std. Err. & Obs. & F-stat & Sample \\
                    \cline{2-6}
                    & (1) & (2) & (3) & (4) & (5) \\                    
\hline
    \\
\multicolumn{6}{l}{\textbf{Panel B: Equities}} \\
SPY&        0.87   &      (0.96)   &        1033   &        75.1   &   1995-2017   \\
IWM&        1.27   &      (1.09)   &         876   &        52.5   &   2000-2017   \\
SP500\( ^\dag\)&        5.99   &      (5.69)   &         973   &        79.8   &   1995-2016   \\
Russell 2000\( ^\dag\)&        5.49   &      (6.28)   &         973   &        79.8   &   1995-2016   \\
\hline\hline
    \end{tabular}
    }
    